Universal Quantum Computation by a Single Photon

20 Sep 2019  ·  Gao Xiaoqin, Liu Zhengwei ·

We use one photon to simulate an n-qubit quantum system for the first time. We propose a new scheme to realize universal quantum computation in polynomial time O(n^5)... A generating set of gates can be realized with high accuracy in the lab. We conclude that photonic quantum computation is one of the promising approaches to universal quantum computation. read more

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Quantum Physics Computational Physics Optics